Ventilator.



C. H. BICALKY. VENITILATOR. ABPLICATION FrLED.APR.11. 1913.

Patented Mar. (i, 1917.

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Patented Mar. 6, 1917.'

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c. H. BICALKYV.

` VENTILATOR. APPLICATION FILED APR- I'I 1913.

INVENJTEIR m qmw/ /CITTDRN EYEJ.

CHARLES H. BICALKY, 0F BU'FIEALO, NEW YORK.

vEN'rrLA'ron.

Specification of Letters Patent. Patented Mal'. 6, 1917..

Application mea April 11, 191.3. serial No. 766,357.

To ali whom t may "concern:

Beit known that I, CHARLES H. BIGALKY, a citizen of the United States, Vresiding at Bu'alo, in the county of Erie and State of New York, have invented new and-pseful Improvements in Ventilators, of which the following is a specification.

This invention relates to a ventilator for use more especially in that system of heating and Ventilating schools, theaters, churches and other public buildings in whichv the air is supplied to a room through pipes, ducts, holes or passages in the floor underneath each seat or in other lsuitable walls or partitions of the building.

lt is the object of this invention to provide a ventilator of improved construction which is adapted to be applied to such air supply openings orpassages which can be readily adjusted to regulate the amount of air which can pass through said supply passages, which is so constructed that the Isame cannot be easily tampered with, which deiects the incoming air toward the oorl or oppositey to the direction in which it is supplied so as' to eliminate objectionable drafts, and which prevents any dust or dirt from being swept into the air passage but permits the surface of the oorvimmediately surrounding the ventilator to be easilycleaned.

in the accompanying drawings:

TFigure 1 is a vertical section showing a ventilator embodying my improvements and applied to the air supply passage of a concrete Hoor, Wall or partition. Fig. 2 isa horizontal section 4taken in line 2-2, Fig. 1./ Fig. 8 is a vertical section of another form of ventilator containing my, invention vand adapted lmore, particularly for use in connection with air passages formed in concrete floors. Fig; 4C is a horizontal section taken in line 1 -4, Eig. 3. Fig. 5 is a fragmentary sectional view of the body, sleeveor thimble, shown in Fig. 4. Fig. 6 is a vertical section showing still another form of ventilator embodying my mventlon for Fig. 7 is a horizon- 8 is a vertical section of another form bf ventilator constructed in accordance with my invention and capable of adjustment to suit diierent thicknesses of concrete doors, walls or partitions.

Similar characters of reference indicate corresponding parts throughout the several views.

`When my improved ventilator is applied Passages in a Hoor, wall or j to air supply partition 23 o concrete the same -may be. constructed as shown in Figs. 1 and 2. As

shown in these figures' the tubular body of .the ventilator comprises a lower lixed section 24 which is embedded vin the floor of concrete so as to bermly secured thereto and is' of the same length as the thickness of this floor so that the opposite ends of this fixed section are Hush with the upper and lowersides-of the ioor. Above the iXed section of the body is arranged a comparatively short movable ring section 25 which is preferably of the same diameter as the. fixed section and adapted to engage with the upperend ofthe latter so as to practically form an vupward or inward continuationV thereof.v lThe up er'section 25 of the body vforms a guard', ange or wallaround the Outlet of the air supply passage. which prevents any .dust and dirt from being freely swept, brushed or washed into the air supply passage when cleaningA the floor.

, 26 represents the deiector cap arranged across the inner end of the tubular body and adapted to defiect the incoming air from thel tubular body laterally and downwardly into the room. The central part of this cap is' dishedinwardly or downwardly so as to spread the air laterally `uniformly in all di rections and the marginalfedge portion of the cap is curved or bent inwardly or downwardly toward the'i'loor so that the air issuing laterally through the space between the body and cap of the ventilator will be deected downwardly toward the floor. By this means objectionable drafts are avoided and the surface of the iioor immediately surrounding the body of the ventilator is swept clean by the incoming current of air. This cap. may be adjustably connected in various ways with the sectional body of the ventilator for the purpose of moving the cap toward and from the outlet end of the body and thereby 'regulating the amount of air which can pass between the same. As shown in Figs. l and 2, this adjusting device preferably, though not necessarily, comprises an upright adjusting screw 27 passing with its upper part through a central opening in the cap and provided with a head 28 at its upJ per end engaging with the top ofthe cap while its lower screw threaded end engages with adjusting and clamping screw nuts 29,

30 which are mounted axially withinv the movable and fixed sections of the tubular body by means of radial arms 3l, 32 connecting these screw nuts, respectively, with the movable and fixed body sections. The cap 26 is held in its elevated position on the adjusting screw 27 and also prevented from turning freely by means of a coil spring 33 arranged around the adjusting screw and bearing with its lower end against the arms Aof the movable body section and with Aits upper end against the underside of the cap.

Normally the upper body section is tightened upon the screw 2T so as to bear firmly against the lower body section and thereby produce a clamping action on this screw whereby the same is held against turning and the cap is retained in its adjusted position 'relatively to the body. lf' it is desired to shift the cap 26 axially relatively to the companion body for varying the amount of air admitted through the ventilator the adjusting screw is first unlocked by turning the inner or movable section of the tubular body backwardly thereby disengaging ythe movable body section from the fixed body section and removing the clamping effect of the screw nut 30 on the screw. The latter can now be turned `freely in the proper direction for either raisingor lowering the capas desired, after which the movablev bodyv section is again turned forwardly so that the screw connection between the same and the adjusting screw will cause the movable body. section to be again clamped on the screw and against the upper end of the fixed body section.

By thus constructing the tubular body of the ventilator in two sections one of which is imm'ovably 4embedded in the concrete while the other is capable of rotation the use of `a separate locking device for preventing rotation of the adjusting screw 1s avoided. Furthermore, by constructing the tubular body in two sections an anchorage for the ventilator in the concrete floor, wall or partition is provided and an upwardly projecting guard flange or wall is formedon the surface of the floor around the air supply passage without interfering with the leveling or smoothing operation on the upper surface of the floor. when constructing the same of concrete, inasmuch as the lower or fixed section of the body is supported by suitable forms while the concrete is being poured-and the upper movable section and the remaining parts of the ventilator are omitted so as to permit of leveling the top of the floor flush with the upper end of the fixed body section by means of a trowelor other concrete leveling tool without encountering any 7obstruction at the upper end of the air supply passage. It will thus be noted that the application of this ventilator to concrete floors orthe like will not interfere with the laying of this Hoor iny the manner which is usually practised, thereby avoiding any added expense in the laying of the floor when installing this ventilator.

In the construction of my improved ventilator shown in Figs. 25 and 4, which is also more particularly designed for use in concrete floors, the lower or fixed section of the tubular body is constructed of a thimble or sleeve 34 of sheet steel or similar metal and a reinforcing or supporting ring of cast metal arranged in the upper end or part of the sleeve. or thimble. The latter is supported during the operation of pouring the concrete around the saine by means of a form board or plate 3G constituting a portion of the form for the concrete floor, said thimble being held in position on this plate by means of nails 3i' or the like passing through laterally projecting lugs 38 on the outer or lower end of the thimble and into the form board or plate. After the concrete has become dry or set the form board or plate' can be easily removed from the lower or outer end of the tubular body inasmuch as the nails will pull out of the form board and can be subsequently detached from the lugs of the thimble or cut off fiush with the under surface of the floor. The supporting or reinforcing ring 35 may be locked or secured in the upper part of the thimble in various ways, for instance, by means of an finwardly projecting bead 39 formed on the thimble and engaging with the lower edge of the supporting or reinforcing ring and an inwardly turned fiange 40 formed on the upper end of a thimble and engaging with the upper edge of the supporting ring 35, as shown in Fig.1 3. In the construction shown in Figs. 3 and 4, the cap 41 is'adjustably connected with the tubular body by means of an adjusting screw 42 having its head 43 bearing against theupper side bf the cap while its lower threaded end passes through adjusting and clamping screw nuts 44, 45 mounted by means of arms 46, 47 on the upper tubular guard section of the body and the supporting ring of the fixed body section, and a spring 48 bearing at its opposite ends against the cap and the arms of the guard ring section.

If desired, the shoulder of the sleeve or thimble for engagement' with the lower edge of the supporting ring 49 may be produced by bending in parts of the sleeve or thimble at different points of its periphery so as to form a plurality of supporting lugs or lips 50` which are engaged by the lower or outer edge of the supporting ring 49, as shown in Figs. 6 and 7. ln Vthis figure this supporting ring is held in engagement with these supporting lips or fingers lby means of bolts 51 passing through the thimble and suppor'tlng ring.

F or the purpose of avoiding the necessity of making the' sleeves or thimbles of diderent lengths to suit different thicknesses-of floors, walls or partitions each of these thimbles may-be constructed of two telescopic sections 52, 53 which may be. adjusted lengthwise upon each other for obtaining a thimble of the requisite length, as shown in Fig. 8. Various', means may be employed for effecting this adjustment' between the thimble sections, that shown in Fig. 8, for example,

being suitable and consisting of cooperating of which is adapted to be xed in an opening of a wall or partition and the otheradapted to movably engage said fixed section and to project above the Wall, a cap arranged ad;v jacent to the outlet end of said body, and

means for adjustably connecting said Acap and body comprising screw nuts mounted on the interior of said body sections and a screw upon which said cap is mounted and which engages with said screw nuts. i

2. A ventilator comprising a tubular body having a fixed sleeve adapted to be secured in an opening in a wall or partition, a suporting ring secured in the inner end of said Exed sleeve, and a guard ring Yarranged at the 'inner ends of said fixed sleeve and supporting ring', -a cap arranged at the inner end. of said guard ring, and means for adv'ustabl f conne'ctino said ca -i and bod com- .i .n

-prising screw nuts moun/ted on the interior of said guard ring and supporting ring and a screw engaging said screw nuts and carry-v in said cap.

Vitness'my hand/this 3rd day of April,

v Witnesses:

Timo. L. Porr, ANNA Hmels. 

